Gene Symbol: TUB3
Description: alpha-tubulin TUB3
Alias: alpha-tubulin TUB3
Species: Saccharomyces cerevisiae S288c

Top Publications

  1. Stearns T, Botstein D. Unlinked noncomplementation: isolation of new conditional-lethal mutations in each of the tubulin genes of Saccharomyces cerevisiae. Genetics. 1988;119:249-60 pubmed
    ..These phenotypes occur in the presence of a wild-type copy of the minor alpha-tubulin-encoding gene, TUB3; the combination of tub1-1 and a tub3 null mutation is inviable in haploids...
  2. Schatz P, Solomon F, Botstein D. Genetically essential and nonessential alpha-tubulin genes specify functionally interchangeable proteins. Mol Cell Biol. 1986;6:3722-33 pubmed
    ..in these processes of the two divergent alpha-tubulin genes of the budding yeast Saccharomyces cerevisiae, TUB1 and TUB3, was examined through the construction of null mutations and by increasing their copy number on chromosomes and on ..
  3. Hoyt M, Macke J, Roberts B, Geiser J. Saccharomyces cerevisiae PAC2 functions with CIN1, 2 and 4 in a pathway leading to normal microtubule stability. Genetics. 1997;146:849-57 pubmed
    ..Our findings suggest that the guanine nucleotide-binding Cin4p interacts with Cin1p and regulates its tubulin folding activity. ..
  4. Schatz P, Pillus L, Grisafi P, Solomon F, Botstein D. Two functional alpha-tubulin genes of the yeast Saccharomyces cerevisiae encode divergent proteins. Mol Cell Biol. 1986;6:3711-21 pubmed
    ..Nucleotide sequencing studies revealed that the two genes, named TUB1 and TUB3, encoded gene products of 447 and 445 amino acids, respectively, that are highly homologous to alpha-tubulins from ..
  5. Schwartz K, Richards K, Botstein D. BIM1 encodes a microtubule-binding protein in yeast. Mol Biol Cell. 1997;8:2677-91 pubmed
    ..One of the human homologues, EB1, has been reported previously as binding APC, itself a microtubule-binding protein and the product of a gene implicated in the etiology of human colon cancer. ..
  6. Balciunas D, Ronne H. Yeast genes GIS1-4: multicopy suppressors of the Gal- phenotype of snf1 mig1 srb8/10/11 cells. Mol Gen Genet. 1999;262:589-99 pubmed
    ..GIS5-7 are identical to the previously described genes PDE2, SGE1 and TUB3, respectively. None of the suppressor genes seem to be involved in Mediator function...
  7. Abruzzi K, Smith A, Chen W, Solomon F. Protection from free beta-tubulin by the beta-tubulin binding protein Rbl2p. Mol Cell Biol. 2002;22:138-47 pubmed
    ..Rescue of beta-tubulin toxicity requires a minimal but substoichiometric ratio of Rbl2p to beta-tubulin. The data suggest that Rbl2p binds transiently to free beta-tubulin, which then passes into an aggregated form that is not toxic. ..
  8. Chung D, Chan J, Strecker J, Zhang W, Ebrahimi Ardebili S, Lu T, et al. Perinuclear tethers license telomeric DSBs for a broad kinesin- and NPC-dependent DNA repair process. Nat Commun. 2015;6:7742 pubmed publisher
    ..Thus, we uncover roles for kinesin and NPCs in DNA repair by BIR and reveal that perinuclear telomere anchors license subtelomeric DSBs for this error-prone DNA repair mechanism. ..
  9. Yin H, You L, Pasqualone D, Kopski K, Huffaker T. Stu1p is physically associated with beta-tubulin and is required for structural integrity of the mitotic spindle. Mol Biol Cell. 2002;13:1881-92 pubmed
    ..Taken together, these findings suggest that Stu1p binds to interpolar microtubules of the mitotic spindle and plays an essential role in their ability to provide an outward force on the spindle poles. ..

More Information


  1. Guenette S, Magendantz M, Solomon F. Suppression of a conditional mutation in alpha-tubulin by overexpression of two checkpoint genes. J Cell Sci. 1995;108 ( Pt 3):1195-204 pubmed
    ..libraries repeatedly identified three different suppressors: the two wild-type alpha-tubulin genes, TUB1 and TUB3; and BUB3...
  2. Farkasovsky M, K√ľntzel H. Cortical Num1p interacts with the dynein intermediate chain Pac11p and cytoplasmic microtubules in budding yeast. J Cell Biol. 2001;152:251-62 pubmed
    ..In addition, Num1p may transiently cooperate with an associated Bni1p-Kar9p complex at the bud tip of early anaphase cells. ..
  3. Saunders W, Hornack D, Lengyel V, Deng C. The Saccharomyces cerevisiae kinesin-related motor Kar3p acts at preanaphase spindle poles to limit the number and length of cytoplasmic microtubules. J Cell Biol. 1997;137:417-31 pubmed
    ..polymerization inhibitors nocodazol or benomyl to the medium or deletion of the nonessential alpha-tubulin TUB3 gene can mostly correct the abnormal microtubule arrays and other growth defects of kar3 mutants, suggesting that ..
  4. Chen X, Yin H, Huffaker T. The yeast spindle pole body component Spc72p interacts with Stu2p and is required for proper microtubule assembly. J Cell Biol. 1998;141:1169-79 pubmed
    ..The chromosome segregation block does not arrest the cell cycle; instead, spc72 cells undergo cytokinesis, producing aploid cells and polyploid cells that contain multiple SPBs. ..
  5. Feierbach B, Nogales E, Downing K, Stearns T. Alf1p, a CLIP-170 domain-containing protein, is functionally and physically associated with alpha-tubulin. J Cell Biol. 1999;144:113-24 pubmed
    ..The phenotype of overexpression of ALF1 suggests that Alf1p can act to sequester alpha-tubulin from interaction with beta-tubulin, raising the possibility that it plays a regulatory role in the formation of the tubulin heterodimer. ..
  6. Lacefield S, Solomon F. A novel step in beta-tubulin folding is important for heterodimer formation in Saccharomyces cerevisiae. Genetics. 2003;165:531-41 pubmed
    ..Importantly, plp1Delta cells that also lack Pac10, a component of the GimC/PFD complex, are even less affected by free beta-tubulin. Our results suggest that Plp1p defines a novel early step in beta-tubulin folding. ..
  7. Beilharz T, Harrison P, Miles D, See M, Le U, Kalanon M, et al. Coordination of Cell Cycle Progression and Mitotic Spindle Assembly Involves Histone H3 Lysine 4 Methylation by Set1/COMPASS. Genetics. 2017;205:185-199 pubmed publisher
    ..strains was accompanied by deregulation of all four tubulin genes and the phenotype was suppressed by tub2-423 and ?tub3 mutations, establishing a genetic link between H3K4 methylation and microtubule function...
  8. Makanae K, Kintaka R, Makino T, Kitano H, Moriya H. Identification of dosage-sensitive genes in Saccharomyces cerevisiae using the genetic tug-of-war method. Genome Res. 2013;23:300-11 pubmed publisher
    ..The results obtained in this study will provide basic knowledge about the physiology of chromosomal abnormalities and the evolution of chromosomal composition. ..
  9. Sproul L, Anderson D, Mackey A, Saunders W, Gilbert S. Cik1 targets the minus-end kinesin depolymerase kar3 to microtubule plus ends. Curr Biol. 2005;15:1420-7 pubmed
    ..We propose that Cik1 targets Kar3 to the microtubule plus end. Kar3Cik1 then uses its minus-end-directed force to depolymerize microtubules from the plus end, with each tubulin-subunit release event tightly coupled to one ATP turnover. ..
  10. Lee M, Spencer F. Bipolar orientation of chromosomes in Saccharomyces cerevisiae is monitored by Mad1 and Mad2, but not by Mad3. Proc Natl Acad Sci U S A. 2004;101:10655-60 pubmed
    ..Cells without MAD3 were checkpoint-proficient. We conclude that Mad1 and Mad2 are required to detect bipolar orientation and/or tension at kinetochores, whereas Mad3 is not. ..
  11. Markus S, Punch J, Lee W. Motor- and tail-dependent targeting of dynein to microtubule plus ends and the cell cortex. Curr Biol. 2009;19:196-205 pubmed publisher
    ..Our results suggest that the cortical association domain is normally masked in the full-length dynein molecule. We propose that targeting of dynein to plus ends unmasks the tail, priming the motor for off-loading to cortical Num1 sites. ..
  12. Richards K, Anders K, Nogales E, Schwartz K, Downing K, Botstein D. Structure-function relationships in yeast tubulins. Mol Biol Cell. 2000;11:1887-903 pubmed